Harvester combine



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United States Patent 64,185 US. Cl. 56-20 31 Claims Int. Cl. A01d 41/02, 45/30; A01f 12/20 ABSTRACT OF THE DISCLQSURE A combine for grain in which the harvested stalks are delivered in an upright position onto an inclined guide surface, and fed across this surface transversely to the direction of travel to a further conveying means which holds the stalks while feeding the heads thereof through a threshing assembly. 'Ilhe threshing assembly includes a threshing drum, a separating drum, a beater located between the two drums and a separating chamber and grain sieve located below the separating drum and acted upon by blowers for separating grain from trash material. Threshed stalks are conveyed to an axiliary separating assembly where the stalks are spread, shaken, and finally discharged from the combine in a desired orientation relative to the path of travel.

This invention relates to improvements in Harvester Combines, especially combines for the havesting and threshing of grain.

The principal objects of the invention are to provide a harvester combine having an improved grain separating ability and which is relatively compact in size and light in weight in comparison to conventional combines of comparable capacity. Another object is to provide a harvester combine incorporating an improved grain handling system, including both harvesting and threshing components so that even plants such as rice, having irregular growing and standing habits, can be efiiciently handled.

The harvester combine of the invention includes a cutting assembly extending transversely across the front portion of the machine and acting in conjunction with grain stalk pickup and feeding mechanism which divides the swath of grain stalks being harvested into a plurality of paths, which straightens bentover stalks while simultaneously positively feeding them through the cutting mechanism and delivers the harvested stalks to a further feeding means for transferring them to a grain threshing assembly. Preferably, the harvested stalks are delivered from the cutting assembly onto a rearwardly inclined surface with the grain-head portion of all stalks arranged r in the same relative position thereon, and the further feeding means conveys the harvested stalks across this inclined surface to a grain stalk holding and transfer means which conveys the stalk through the threshing assembly.

The threshing assembly includes a housing having a drum rotating therein for combing grains off the stalk heads, with an inlet opening in the housing adjacent one end of the drum and a discharge opening disposed near the other end thereof. A passage extends along the housing between the inlet and discharge openings, and the grain stalks are conveyed valong this passage with the grain heads thereof extending into the housing for threshing action by the drum.

Thethreshed stalks are then preferably delivered by the grain stalk holding and transfer means to an auxiliary grain separating assembly which acts to spread the stalks apart, shake the stalks to remove any grain clinging thereto and discharge the stalks from the machine in a desired orientation relative to the path of machine travel.

Preferably the threshing assembly includes threshing drum and separating drum, the separating drum being located rearwardly and above the threshing drum with a beater being interposed between the two drums. A grain separating chamber is provided rearwardly and below the separating drum, and means are provided therein including a movable grain sieve and blowers for further separating grain from trash material, for delivering the threshed grain to a grain storage tank and for discharging the trash material to the outside.

Preferably also, the harvester combine of the invention is provided with a running assembly of the endless tread type, and the main frame of the machine is connected to the frame of the running assembly so that the relative vertical spacing between these frames can be altered at the will of the operator to change the cutting height, and to facilitate the discharge of grain from the grain tank.

Other features and advantages of the invention Will become apparent from the following description of the embodiment disclosed in the attached drawings in which;

FIGURE 1 is a front perspective view of a harvester combine embodying the principles of this invention;

FIGURE 2 is a rear perspective view of the embodiment shown in FIGURE 1;

FIGURE 3a is a longitudinal sectional view of a grain separating assembly housing, built in the embodiment of FIGURE 1, with the divider part removed;

FIGURE 3b is a side view of the divider part removed from the embodiment of FIGURE 3a;

FIGURE 4 is a perspective view showing the construction of the grain separating assembly housing and grain tank constituting the embodiment of FIGURE 1, with some parts thereof removed;

FIGURE 5 is a longitudinal sectional view of a grain sieve employed in the embodiment of FIGURE 4;

FIGURE 6 is a sectional view on an enlarged scale taken along the line 6-6 of FIGURE 3a;

FIGURE 7 is a perspective elevation showing an auxiliary grain separating assembly constituting the embodiment of FIGURE 1;

FIGURE 8 is a sectional view on an enlarged scale taken along the line 8-8 of FIGURES 3a and 3b;

FIGURE 9 is a partially removed longitudinal sectional view showing on an enlarged scale the grain stalk pick-up assembly and grain stalk transfer assembly;

FIGURE 10 is a sectional view taken along the line 10-10 of FIGURE 9;

FIGURE 11 is a longitudinal sectional view showing on an enlarged scale the grain stalk transfer assembly;

FIGURE 12 is an enlarged sectional View taken along the line 12-12 of FIGURE 9;

FIGURE 13 is an enlarged sectional view taken along the line 13-13 of FIGURE 9;

FIGURE 14 is a rear prespective view of FIGURE 13;

FIGURE 15 is a front perspective view showing a portion of the grain stalk pick-up assembly;

FIGURE 16 is an enlarged sectional view taken along the line 16-16 of FIGURE 3a;

FIGURE 17 is a sectional view on an enlarged scale taken along the line 17-17 of FIGURE 9;

FIGURE 18 is a sectional view on an enlarged scale taken along the line 18-18 of FIGURE 9;

FIGURE 19 is a sectional view on an enlarged scale taken along the line 19-19 of FIGURE 9;

FIGURE 20 is a front perspective elevation showing the structure of one of the crawler type track assembly and oil lines of hydraulic system of this invention and the motive power system of said unit; 

